One problem related to air brake abs warning light has been reported for the 1999 Mercury Mountaineer. The most recently reported issues are listed below.
Abs light is on and had test done and comes up as rear speed control sensor. Have replaced numerous times and still no change. Have taken to Ford dealerships, Mercury dealerships, and other well known maintenance shops and no one knows what is wrong. Since the light has come on the front brakes feel like they are dragging. Also the display on the premium radio works when it wants to.
| Air Brake problems | |
| Air Brake Wheel Speed Sensor problems | |
| Air Brake Abs Warning Light problems |